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| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2008-06-30 01:34:12 -0700 |
|---|---|---|
| committer | Luis R. Rodriguez <lrodriguez@atheros.com> | 2008-06-30 01:34:12 -0700 |
| commit | fbc55b8bc132fd8dd88a30fe176c210eb25593e1 (patch) | |
| tree | 9a29e1186473bf9d1bdf97901e9ea1e118480bb5 | |
| parent | 1f35f3caf8585801860992d8556a46fd1c2ae815 (diff) | |
| download | compat-wireless-2.6-old-fbc55b8bc132fd8dd88a30fe176c210eb25593e1.tar.gz | |
Add list_is_singular() to compat.h for older kernels.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
| -rw-r--r-- | compat/compat.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/compat/compat.h b/compat/compat.h index 8a23e35..e47e0ec 100644 --- a/compat/compat.h +++ b/compat/compat.h @@ -476,6 +476,17 @@ static inline void led_classdev_unregister_suspended(struct led_classdev *lcd) #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)) +/* This is from include/linux/list.h */ + +/** + * list_is_singular - tests whether a list has just one entry. + * @head: the list to test. + */ +static inline int list_is_singular(const struct list_head *head) +{ + return !list_empty(head) && (head->next == head->prev); +} + /* This is from include/linux/rfkill.h */ #define RFKILL_STATE_SOFT_BLOCKED RFKILL_STATE_OFF #define RFKILL_STATE_UNBLOCKED RFKILL_STATE_ON |